Properties and structure of (Tl0.5Pb0.5)Sr2(Ca1-xNdx)Cu2Oz(Tl-1212) superconductors

被引：7
作者：
Gritzner, Gerhard [1 ]
Sudra, Heinz [1 ]
Gabriel, Herbert [1 ]
Kavecansky, Viktor [2 ]
Soubeyroux, Jean-Louis [3 ]
机构：
[1] Johannes Kepler Univ Linz, Inst Chem Technol Inorgan Mat, A-4040 Linz, Austria
[2] Slovak Acad Sci, Inst Expt Phys, SK-04001 Kosice, Slovakia
[3] CNRS, Inst Neel, F-38042 Grenoble, France
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2008年 / 21卷 / 12期
关键词：
D O I：
10.1088/0953-2048/21/12/125009
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Bulk material of Nd-doped Tl-1212 superconductors was prepared via a two-step procedure based on a wet chemical method to prepare precursor material followed by heat-treatment at 895 degrees C for 10 h. The samples with Nd stoichiometry of x = 0.05, 0.1, 0.15, 0.20 0.25 and 0.30 were characterized by XRD, electron microscopy and by resistance measurements. Oxygen stoichiometry of the specimens was analyzed. Lattice parameters were derived from x-ray diffraction and neutron diffraction measurements. The increase of the a-axis and the decrease of the c-axis as a function of the Nd content are discussed.
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